diff --git a/packages/frontend/src/pages/about-misskey.vue b/packages/frontend/src/pages/about-misskey.vue
index acaae9f1d7..5c00f94cc2 100644
--- a/packages/frontend/src/pages/about-misskey.vue
+++ b/packages/frontend/src/pages/about-misskey.vue
@@ -213,13 +213,13 @@ const patronsWithIcon = [{
 	icon: 'https://assets.misskey-hub.net/patrons/302dce2898dd457ba03c3f7dc037900b.jpg',
 }, {
 	name: 'taichan',
-	icon: 'https://assets.misskey-hub.net/patrons/f981ab0159fb4e2c998e05f7263e1cd9.png',
+	icon: 'https://assets.misskey-hub.net/patrons/f981ab0159fb4e2c998e05f7263e1cd9.jpg',
 }, {
 	name: '猫吉よりお',
-	icon: 'https://assets.misskey-hub.net/patrons/a11518b3b34b4536a4bdd7178ba76a7b.png',
+	icon: 'https://assets.misskey-hub.net/patrons/a11518b3b34b4536a4bdd7178ba76a7b.jpg',
 }, {
 	name: '有栖かずみ',
-	icon: 'https://assets.misskey-hub.net/patrons/9240e8e0ba294a8884143e99ac7ed6a0.png',
+	icon: 'https://assets.misskey-hub.net/patrons/9240e8e0ba294a8884143e99ac7ed6a0.jpg',
 }];
 
 const patrons = [